复利的第一大杀手，很多人都理解错了

Group 1 - The core issue with compound interest is the difference between average returns and annualized returns, which can lead to significant discrepancies in actual investment outcomes [4][16][18] - Investors with the same average return can have vastly different annualized returns, highlighting the importance of understanding volatility and its impact on long-term compounding [5][14][26] - The article emphasizes that lower volatility can lead to higher annualized returns, even if average returns remain the same, demonstrating the critical role of risk management in investment strategies [16][27][40] Group 2 - Investment ability is defined as the capacity to achieve returns exceeding those of a benchmark index, with a focus on identifying opportunities with a favorable risk-reward ratio [18][19][20] - The relationship between average returns and investment ability is established, indicating that average returns are a more accurate measure of an investor's skill than annualized returns [22][23] - The article discusses the non-linear relationship between volatility and annualized returns, suggesting that as volatility increases, the potential for higher returns diminishes, creating a critical threshold for investors [29][42] Group 3 - The article presents various scenarios illustrating how different combinations of returns can affect average and annualized returns, emphasizing the importance of maintaining a balanced approach to risk and reward [30][36][39] - It highlights the tendency of investors to chase high returns without adequately managing risk, which can lead to detrimental outcomes, particularly in volatile markets [41][44] - The concept of standard deviation is introduced as a quantifiable measure of volatility, with recommendations for investors to monitor their return fluctuations to optimize their investment strategies [48][50]